[Nhibernate-commit] nhibernate/src/NHibernate.DomainModel/NHSpecific ClassWithNullColumns.cs,NONE,1.1 ClassWithNullColumns.hbm.xml,NONE,1.1 NullInt32UserType.cs,NONE,1.1

[Michael D. <mik...@us...>]

Update of /cvsroot/nhibernate/nhibernate/src/NHibernate.DomainModel/NHSpecific
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv10969/NHSpecific

Added Files:
	ClassWithNullColumns.cs ClassWithNullColumns.hbm.xml 
	NullInt32UserType.cs 
Log Message:
Added a quick test for UserTypes to save an Int32 as a null to the db.

--- NEW FILE: NullInt32UserType.cs ---
using System;
using System.Data;

using NHibernate;
using NHibernate.SqlTypes;
using NHibernate.Type;

namespace NHibernate.DomainModel.NHSpecific 
{

	/// <summary>
	/// Converts a value of 0 to a DbNull
	/// </summary>
	public class NullInt32UserType : IUserType
	{
		private static NullableType _int32Type = NHibernate.Int32;

		public NullInt32UserType() 
		{
			
		}

		#region IUserType Members

		public new bool Equals(object x, object y)
		{
			
			if(x==y) return true;

			int lhs = (x==null) ? 0 : (int)x;
			int rhs = (y==null) ? 0 : (int)y;

			return _int32Type.Equals(lhs, rhs);

		}

		public SqlType[] SqlTypes
		{
			get
			{
				return new SqlType[] { _int32Type.SqlType };
			}
		}

		public System.Data.DbType[] DbTypes
		{
			get
			{
				return new DbType[] { _int32Type.SqlType.DbType };
			}
		}

		public object DeepCopy(object value)
		{
			return value;
		}

		public void NullSafeSet(System.Data.IDbCommand cmd, object value, int index)
		{
			if(value.Equals(0)) 
			{
				( (IDbDataParameter)cmd.Parameters[index]).Value = DBNull.Value;
			}
			else 
			{
				_int32Type.Set(cmd, value, index);
			}
		}

		public System.Type ReturnedType
		{
			get { return typeof(System.Int32); }
		}

		public object NullSafeGet(System.Data.IDataReader rs, string[] names, object owner)
		{
			return _int32Type.NullSafeGet(rs, names);
		}

		public bool IsMutable
		{
			get { return _int32Type.IsMutable; }
		}

		#endregion
	}
}

--- NEW FILE: ClassWithNullColumns.cs ---
using System;

namespace NHibernate.DomainModel.NHSpecific 
{

	/// <summary>
	/// Summary description for ClassWithNullColumns.
	/// </summary>
	public class ClassWithNullColumns 
	{
		
		private int _id;
		private int _firstInt32;
		private int _secondInt32;

		public int Id
		{
			get { return _id; }
			set { _id = value; }
		}

		public int FirstInt32
		{
			get { return _firstInt32; }
			set { _firstInt32 = value; }
		}

		public int SecondInt32
		{
			get { return _secondInt32; }
			set { _secondInt32 = value; }
		}

	}
}

--- NEW FILE: ClassWithNullColumns.hbm.xml ---
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